PowertrainP1938

Caution

Severity: Caution - get it checked when you can

Auxiliary Engine Coolant Pump Relay (J496): Open or Short to Ground

16 brands affected · Description from Chery data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

Safety: This code relates to engine cooling or temperature. Overheating can damage the engine.

1What it means in plain English

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
Control module fault

3Can I drive?

Caution · drive with care

Watch the temperature gauge. Stop safely and let the engine cool if the gauge climbs, steam appears, or a red warning light comes on.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 16

Brand	Code	Description	System
Chery	P1938	Auxiliary Engine Coolant Pump Relay (J496): Open or Short to Ground Brand	Powertrain
Daewoo	P1938	No description available	Powertrain
DFXK	P1938	Auxiliary Engine Coolant Pump Relay (J496): Open or Short to Ground Brand	Powertrain
EOBD	P1938	A/F-sensorvarmerfeil Brand	Powertrain
Geely	P1938	Auxiliary Engine Coolant Pump Relay (J496): Open or Short to Ground Brand	Powertrain
GM	P1938	No description available	Powertrain
Holden	P1938	No description available	Powertrain
Land Rover	P1938	No description available	Powertrain
Mitsubishi	P1938	Gearbox shift drum interchanged Brand	Powertrain
Opel	P1938	No description available	Powertrain
Peugeot	P1938	No description available	Powertrain
Proton	P1938	Gearbox shift drum interchanged Brand	Powertrain
Saab	P1938	No description available	Powertrain
Smart	P1938	No description available	Powertrain
Suzuki	P1938	A/F sensor heater Malfunction Brand	Powertrain
Tata	P1938	No description available	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 2

These 7-character codes are manufacturer-specific variants of P1938 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P193800	Fehlereintrag Hybrid System Fehler 11 Brand	Powertrain
Sprinter	P193800	Fehlereintrag Hybrid System Fehler 11 Brand	Powertrain

6Related codes

Browse Pxxx codes or P193xx codes.